/Engine/Source/Editor/MaterialEditor/Public/MaterialEditingLibrary.h
Get the current texture parameter value from a Material Instance
static [URuntimeVirtualTexture](API\Runtime\Engine\VT\URuntimeVirtualTexture) * GetMaterialInstanceRuntimeVirtualTextureParameterValue ( [UMaterialInstanceConstant](API\Runtime\Engine\Materials\UMaterialInstanceConstant) * Instance, [FName](API\Runtime\Core\UObject\FName) ParameterName, EMaterialParameterAssociation Association )